23780025 has 36 divisors (see below), whose sum is σ = 45105372. Its totient is φ = 11934720.

The previous prime is 23780021. The next prime is 23780063. The reversal of 23780025 is 52008732.

It can be written as a sum of positive squares in 6 ways, for example, as 393129 + 23386896 = 627^2 + 4836^2 .

It is not a de Polignac number, because 23780025 - 2² = 23780021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23780021) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 717 + ... + 6933.

It is an arithmetic number, because the mean of its divisors is an integer number (1252927).

Almost surely, 2^23780025 is an apocalyptic number.

23780025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23780025 is a deficient number, since it is larger than the sum of its proper divisors (21325347).

23780025 is a wasteful number, since it uses less digits than its factorization.

23780025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250 (or 6242 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 23780025 is about 4876.4766994214. The cubic root of 23780025 is about 287.5659332084.

Adding to 23780025 its reverse (52008732), we get a palindrome (75788757).

The spelling of 23780025 in words is "twenty-three million, seven hundred eighty thousand, twenty-five".